dmesg-output:
[code]<4>i2c_master_comb_read: I2C ERR: port 0 comb read error ================
<4>i2c_master_comb_read: I2C ERR: slave dev 0xcc ================
<4>i2c_master_comb_read: I2C ERR: slave not exist or =============
<4>i2c_master_comb_read: I2C ERR: sub address not ack ================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_write: I2C ERR: port 0 write error ================
<4>i2c_master_write: I2C ERR: slave dev 0xcc ================
<4>i2c_master_write: I2C ERR: error status 0x81================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_comb_read: I2C ERR: port 0 comb read error ================
<4>i2c_master_comb_read: I2C ERR: slave dev 0xcc ================
<4>i2c_master_comb_read: I2C ERR: slave not exist or =============
<4>i2c_master_comb_read: I2C ERR: sub address not ack ================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_write: I2C ERR: port 0 write error ================
<4>i2c_master_write: I2C ERR: slave dev 0xcc ================
<4>i2c_master_write: I2C ERR: error status 0x81================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_comb_read: I2C ERR: port 0 comb read error ================
<4>i2c_master_comb_read: I2C ERR: slave dev 0xcc ================
<4>i2c_master_comb_read: I2C ERR: slave not exist or =============
<4>i2c_master_comb_read: I2C ERR: sub address not ack ================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_write: I2C ERR: port 0 write error ================
<4>i2c_master_write: I2C ERR: slave dev 0xcc ================
<4>i2c_master_write: I2C ERR: error status 0x81================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_comb_read: I2C ERR: port 0 comb read error ================
<4>i2c_master_comb_read: I2C ERR: slave dev 0xcc ================
<4>i2c_master_comb_read: I2C ERR: slave not exist or =============
<4>i2c_master_comb_read: I2C ERR: sub address not ack ================
<4>sdp_i2c_ioctl: i2c device start byte not ack
<4>i2c_master_write: I2C ERR: port 0 write error ================
<4>i2c_master_write: I2C ERR: slave dev 0xcc ================
<4>i2c_master_write: I2C ERR: error status 0x81================
<4>sdp_i2c_ioctl: i2c device start byte not ack
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